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refactor: fix return type of `tryCall` (#25481) 

PR Close #25481
This commit is contained in:
Alan Agius 2018-08-14 16:26:44 +02:00 committed by Alex Rickabaugh
parent aac08e0438
commit a08af77b70
1 changed files with 10 additions and 11 deletions
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21
packages/language-service/src/ts_plugin.ts
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@ -26,51 +26,50 @@ export function create(info: any /* ts.server.PluginCreateInfo */): ts.LanguageS
const proxy: ts.LanguageService = Object.create(null);
let oldLS: ts.LanguageService = info.languageService;
function tryCall<T>(fileName: string | undefined, callback: () => T): T {
function tryCall<T>(fileName: string | undefined, callback: () => T): T|undefined {
if (fileName && !oldLS.getProgram() !.getSourceFile(fileName)) {
return undefined as any as T;
return undefined;
}
try {
return callback();
} catch (e) {
return undefined as any as T;
} catch {
return undefined;
}
}
function tryFilenameCall<T>(m: (fileName: string) => T): (fileName: string) => T {
function tryFilenameCall<T>(m: (fileName: string) => T): (fileName: string) => T | undefined {
return fileName => tryCall(fileName, () => <T>(m.call(ls, fileName)));
}
function tryFilenameOneCall<T, P>(m: (fileName: string, p: P) => T): (filename: string, p: P) =>
T {
T | undefined {
return (fileName, p) => tryCall(fileName, () => <T>(m.call(ls, fileName, p)));
}
function tryFilenameTwoCall<T, P1, P2>(m: (fileName: string, p1: P1, p2: P2) => T): (
filename: string, p1: P1, p2: P2) => T {
filename: string, p1: P1, p2: P2) => T | undefined {
return (fileName, p1, p2) => tryCall(fileName, () => <T>(m.call(ls, fileName, p1, p2)));
}
function tryFilenameThreeCall<T, P1, P2, P3>(m: (fileName: string, p1: P1, p2: P2, p3: P3) => T):
(filename: string, p1: P1, p2: P2, p3: P3) => T {
(filename: string, p1: P1, p2: P2, p3: P3) => T | undefined {
return (fileName, p1, p2, p3) => tryCall(fileName, () => <T>(m.call(ls, fileName, p1, p2, p3)));
}
function tryFilenameFourCall<T, P1, P2, P3, P4>(
m: (fileName: string, p1: P1, p2: P2, p3: P3, p4: P4) =>
T): (fileName: string, p1: P1, p2: P2, p3: P3, p4: P4) => T {
T): (fileName: string, p1: P1, p2: P2, p3: P3, p4: P4) => T | undefined {
return (fileName, p1, p2, p3, p4) =>
tryCall(fileName, () => <T>(m.call(ls, fileName, p1, p2, p3, p4)));
}
function tryFilenameFiveCall<T, P1, P2, P3, P4, P5>(
m: (fileName: string, p1: P1, p2: P2, p3: P3, p4: P4, p5: P5) =>
T): (fileName: string, p1: P1, p2: P2, p3: P3, p4: P4, p5: P5) => T {
T): (fileName: string, p1: P1, p2: P2, p3: P3, p4: P4, p5: P5) => T | undefined {
return (fileName, p1, p2, p3, p4, p5) =>
tryCall(fileName, () => <T>(m.call(ls, fileName, p1, p2, p3, p4, p5)));
}
function typescriptOnly(ls: ts.LanguageService): ts.LanguageService {
const languageService: ts.LanguageService = {
cleanupSemanticCache: () => ls.cleanupSemanticCache(),